Page 115 - Instant notes
P. 115
Colligative properties 101
ΠV≈n BRT
where n B is the number of moles of solute B. Thus:
Π≈c BRT
which enables c B, the concentration of solute B in the solution in the right hand
compartment at equilibrium, to be measured at any temperature T.
Fig. 1. Schematic diagram of the
apparatus for measuring osmotic
pressure. (a) Apparatus at the start of
the measurement; (b) apparatus at
equilibrium
